Find A Lake > Vilas County > Upper Gresham Lake
Upper Gresham Lake
Upper Gresham Lake has been monitored by volunteers since 1990. Volunteers monitor water clarity with a black and white Secchi disk. Volunteers are the source of the majority of Wisconsin's lake water quality data, and their dedication is greatly appreciated. Additional monitoring has been done through projects funded in part by DNR Lake Grants and Aquatic Invasive Species Grants. Reports and graphs featuring data collected by volunteers, DNR staff and others can be viewed below.
Water Quality Reports and Graphs
| Station Name | Station ID | Map | Max Year | Reports |
|---|
| Upper Gresham Lake - Deep Hole | 643268 | Map | 2024 | Details |
| Upper Gresham Lake - UG1 (Application Area A-22) | 10056199 | Map | 2022 | Details |
| Upper Gresham Lake - UG2 (Application Area A-22) | 10056200 | Map | 2022 | Details |
| Upper Gresham Lake - UG4 (West AOPI) | 10056201 | Map | 2022 | Details |
| Upper Gresham Lake - UG5 (East AOPI) | 10056202 | Map | 2022 | Details |